Kubodaira Mudflow Deposit

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Kubodaira Mudflow Deposit

Type locality: Tsutsumigawa power plant, Kubodaira, Makioka town, Yamanashi city, Yamanashi prefecture
Coherent formation
Pliocene

Sedimentary facies: Terrestrial
Lithofacies: Mudflow deposit
Sedimentary structures: Parallel stratification, Cross stratification

Thickness: 200 m
Upper limit: Unconformity (Makidaira Pyroclastic Flow Deposit)
Lower limit: Conformity? (Katayama Lava), Unconformity (Yamaguchi Pumice Tuff, Toiwa Pyroclastic Flow Deposit)

Mizugamori Volcanic Rock
[ Upper ]
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Kubodaira Mudflow Deposit
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Katayama Lava
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Toiwa Pyroclastic Flow Deposit
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Yamaguchi Pumice Tuff
~~~~~~~~~~~~~~
[ Lower ]

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Tsutsumigawa power plant, Kubodaira, Makioka town, Yamanashi city, Yamanashi pref.; Kamezawa river, Kai city, Yamanashi pref.; Arakawa river, Kofu city, Yamanashi pref.; Mizugamori, Kofu city - Yamanashi city, Yamanashi pref.

Mimura et al. (1984) Geology of the Mitake-Shosenkyo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 61p. (in Japanese with English abstract 4p.)